Fuel economy problems
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No power when changing gears 
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Toyota Corolla 2008 Sedan 1.4 professional 260000 miles
Hi my car idling sound is almost like a tractor sound, I serviced my car, and it got softer but still there. Main issue is when changing gears there is no power and fuel consumption is suddenly high
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Best answer (according to Walter)
WA
It was a Faulty starter coil
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CommentThe car was being out white and black smoke and
Toyota Corolla 2003 Other 6000 miles
The car was being out white and black smoke due to late servicing and lead to high rate of fuel consumption and have rectify that but now it is blue smoke what might be the cause of the blue smoke despite the good sounds of the engine
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